Malware Analysis Report

2025-01-22 18:58

Sample ID 240316-c8yfwaab7v
Target b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll
SHA256 b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301
Tags
gozi 3500 banker isfb trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301

Threat Level: Known bad

The file b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll was found to be: Known bad.

Malicious Activity Summary

gozi 3500 banker isfb trojan

Gozi

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-16 02:45

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-16 02:45

Reported

2024-03-16 02:48

Platform

win7-20240221-en

Max time kernel

174s

Max time network

140s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2344 wrote to memory of 2632 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

Network

N/A

Files

memory/2632-0-0x0000000074F00000-0x000000007500D000-memory.dmp

memory/2632-2-0x0000000074F00000-0x000000007500D000-memory.dmp

memory/2632-3-0x00000000000C0000-0x00000000000C1000-memory.dmp

memory/2632-4-0x0000000074F00000-0x000000007500D000-memory.dmp

memory/2632-5-0x00000000001D0000-0x00000000001DD000-memory.dmp

memory/2632-8-0x0000000074F00000-0x000000007500D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-16 02:45

Reported

2024-03-16 02:48

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

153s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

Signatures

Gozi

banker trojan gozi

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3284 wrote to memory of 3544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3284 wrote to memory of 3544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3284 wrote to memory of 3544 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\b54dc5193824eb35233c3922687a5adc462ab474362dd4effd488c2ae0dae301.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 init.icecreambob.com udp
US 8.8.8.8:53 app.updatebrouser.com udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 fun.lakeofgold.com udp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 211.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 init.icecreambob.com udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 app.updatebrouser.com udp
US 8.8.8.8:53 fun.lakeofgold.com udp

Files

memory/3544-0-0x00000000756C0000-0x00000000757CD000-memory.dmp

memory/3544-1-0x00000000756C0000-0x00000000757CD000-memory.dmp

memory/3544-3-0x00000000756C0000-0x00000000757CD000-memory.dmp

memory/3544-2-0x0000000002D70000-0x0000000002D71000-memory.dmp

memory/3544-4-0x0000000002EC0000-0x0000000002ECD000-memory.dmp

memory/3544-7-0x00000000756C0000-0x00000000757CD000-memory.dmp

memory/3544-9-0x0000000002D70000-0x0000000002D71000-memory.dmp